001/*
002 * (C) Copyright 2010 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Nuxeo - initial API and implementation
016 */
017
018package org.nuxeo.runtime.management.metrics;
019
020import java.io.IOException;
021
022import org.apache.commons.logging.Log;
023import org.apache.commons.logging.LogFactory;
024import org.javasimon.CallbackSkeleton;
025import org.javasimon.Counter;
026import org.javasimon.Sample;
027import org.javasimon.Split;
028
029public class MetricSerializingCallback extends CallbackSkeleton {
030
031    protected static final Log log = LogFactory.getLog(MetricSerializingCallback.class);
032
033    protected final MetricSerializer serializer;
034
035    public MetricSerializingCallback(MetricSerializer serializer) {
036        this.serializer = serializer;
037    }
038
039    @Override
040    public void stopwatchStop(Split split) {
041        toStream(split.getStopwatch().sample());
042    }
043
044    @Override
045    public void counterSet(Counter counter, long val) {
046        toStream(counter.sample());
047    }
048
049    protected void toStream(Sample sample) {
050        try {
051            serializer.toStream(sample);
052        } catch (IOException e) {
053            log.info("not streamed " + sample, e);
054        }
055    }
056
057}